Systematic Anatomical Description of the Female Pelvic Retroperitoneum in Cadavers

Inclusion Criteria: * Female cadavers from an institutional body donation program * Age ≥ 18 years at time of death * Adequate preservation of pelvic and abdominal retroperitoneal structures * Anatomical integrity allowing identification of the pelvic ureter, iliac vessels and their main branches, obturator nerve, and other structures included in the anatomical checklist. * Availability of both hemipelves for comparative analysis * Authorization for research use according to institutional body donation regulations Exclusion Criteria: * Male cadavers * Prior major pelvic or abdominal surgery significantly altering retroperitoneal anatomy (e.g., hysterectomy, lymphadenectomy, vascular surgery) * History of pelvic or abdominal radiotherapy * Advanced pelvic or abdominal malignancy with retroperitoneal involvement * Severe trauma affecting pelvic or abdominal anatomy * Poor preservation or significant tissue degradation * Absence of one or both hemipelves * Advanced pregnancy at time of death